Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2db6814dc2f36a6…

MALICIOUS

PDF

73.5 KB Created: 2021-02-18 22:23:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13
MD5: 6fbfe92805dd1c409ad92cceddc31993 SHA-1: fe2cfb8690bdaabb919056916cc7eafcbb65b944 SHA-256: d2db6814dc2f36a61e8662db2d460cc843505b068a5bb641359377e09c4a669d
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. It contains a large number of external links, forming a link farm, with the primary malicious URL being 'https://maypoin.ru/wix?keyword=old+is+goldie+hawn'. The document body is heavily obfuscated and appears to contain junk data, but the presence of numerous external links strongly suggests a phishing or malicious redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://maypoin.ru/wix?keyword=old+is+goldie+hawn PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4404990/normal_60071db4a1f58.pdfIn PDF document text
    • https://jakineporop.weebly.com/uploads/1/3/5/3/135302356/daa04.pdfIn PDF document text
    • http://betflixguvenilirmi.com/saveminoragubodirosijupohi3.pdfIn PDF document text
    • https://cdn.sqhk.co/pemenixa/2bEpjcL/events_in_atlanta_today_family.pdfIn PDF document text
    • https://cdn.sqhk.co/tofatuxurejo/ijgcvxu/impressionist_art_masterpieces_to_color.pdfIn PDF document text
    • https://cdn.sqhk.co/leperanurosi/hjjjgjm/mimuxarori.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479235/normal_5fe2c6dc448b7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451374/normal_5fe8277121f36.pdfIn PDF document text
    • https://cdn.sqhk.co/lepowabog/jDAhcja/72318423911.pdfIn PDF document text
    • https://cdn.sqhk.co/miweguzeg/ieWCTTZ/kivejirisefasi.pdfIn PDF document text
    • https://cdn.sqhk.co/febowozefu/jcPVajh/66991861510.pdfIn PDF document text
    • https://cdn.sqhk.co/vovewotutal/ehcgejf/pixel_launcher_android_10_apk_xda.pdfIn PDF document text
    • http://getchambre.xyz/vozomefapoxigomwpmnt.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412170/normal_6003205ca0dc3.pdfIn PDF document text
    • https://cdn.sqhk.co/xekawiba/gNihNeS/highwaymen_songs_that_make_a_difference.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e3ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3EF 5108 bytes
SHA-256: 3876bf365ded238462e5ea12ab8a7376cd83593d22da1a4d396fba6fa6ef776a
font_01_sfnt_off0000f55a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF55A 10596 bytes
SHA-256: 088d17ff01ae0a39e450e42587888997d9d0b064ce0f6ff7ad396649ef1a2bc5